Louver structure of air conditioner for a bus

ABSTRACT

A louver structure of an air conditioner for a vehicle is provided that can enable a passenger to control the direction and the amount of cooling air discharged from an air conditioner as desired. By the louver structure, when the passengers do not want the cooling air to be in direct contact with their bodies, it is possible to convert the direction of discharging the cooling air in an alternate direction as well as improve a cooling effect within the vehicle.

CROSS-REFERENCE TO RELETAED APPLICATION

This application claims priority to and the benefit of Korean Patent Application 10-2005-0104008 filed in the Korean Intellectual Property Office on Nov. 1, 2005, the entire content of which is incorporated herein by reference.

FIELD OF THE INVENTION

The present invention relates to an air conditioner for a vehicle, and more particularly to a louver structure of an air conditioner for a bus, by which a passenger can control the direction and the amount of cooling air discharged from an air conditioner of a bus according to his or her desire.

BACKGROUND

Generally, a vehicle has an air conditioner for circulating, filtering and keeping air flowing in the interior and exterior of the vehicle at a constant temperature. The air conditioner includes a blower for sucking in air from the interior or exterior of the vehicle and for heating or cooling the air so as to discharge the air, and an air duct and defroster for circulating the air from the blower.

A damper is installed at an exit of the air duct so as to isolate a nozzle and an air passage for controlling the amount of cooling air or heated air, while a refrigerator or heater is connected to an entrance of the air duct so as to cool or heat the air.

Further, it is common for louvers of the air conditioner connected to the duct to be installed over windows on passenger buses.

The louvers of the air conditioner discharge the cooling air to the passengers who sit while the air conditioner mounted in the vehicle operates to supply the cooling air through the duct of the air conditioner.

The louvers of the air conditioner are installed to a lower surface of the duct of the air conditioner for a bus and have respective ports for supplying the cooling air to the cabin of the bus, to which louver housings are rotatably mounted.

Each of the louver housings has a structure in that a pair of wings and a control knob for operating the wings are installed in the louver housing. Each wing has a hemispheric shape.

In the conventional louver structure of the air conditioner as described above, the discharging direction of the blowing air can be converted according to the necessity of the passenger which gets on the bus.

That is, the control knob is operated to control a rotation angle of the wings, thereby controlling the amount of the blowing air and rotating the louver housing in a desired direction in which the passenger wants to rotate the louver housing.

However, the conventional louver structure of the air conditioner has a problem in that the cooling air is discharged from the louver only in a vertically downward direction, so that a cooling area is limited.

The cooling air is discharged to a place at which the louver is installed, so as to continue to refrigerate the place, while the cooling air is not discharged to a place at which the louver is not installed. Thus, there arises difference of cooling effect between the places, resulting in inefficient cooling performance in the cabin of the vehicle.

Further, since the cooling air discharged to the passengers comes in direct contact with their bodies, the cooling air has the potential to badly affect the health of a baby, a child, and an old man when the baby, child and old man are exposed to the cooling air for a long time. Meanwhile, as the passengers are continuously exposed to the cooling air, there remains the disadvantage that the passengers are exposed to the vehicle's unpleasantness until the vehicle arrives at its destination.

The information set forth in this Background of the Invention section is only for enhancement of understanding of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art that is already known to a person skilled in the art.

SUMMARY OF THE INVENTION

In one aspect, a louver structure of an air conditioner is provided for a motor vehicle particularly a bus, by which passengers getting on the bus can control the direction and the amount of cooling air discharged from an air conditioner of a bus by way of a control portion that can be regulated in accordance with each passenger's cooling preference.

In a preferred aspect, a louver structure of an air conditioner for a vehicle is provided, which suitably comprises: a louver body for discharging cooling air supplied through a duct and comprising one or more apertures; one or more air control plates positioned in coordination with one or more apertures of the louver body and comprising a first air discharging portion in order to discharge cooling air, one or more air control housings positioned in coordination with the louver body and comprising a second air discharging portion; and one or more adjustment controls that can be accessed by a vehicle passenger and preferably extend into the louver body.

In a particularly preferred aspect, there is provided a louver structure of an air conditioner for a bus, which includes: a louver body for discharging cooling air supplied through a duct, the louver body being installed in the duct arranged in the bus and having thru-holes formed in the louver body; air control plates respectively installed in each thru-hole of the louver body and having a first air discharging portion in order to discharge the cooling air; air control housings fixedly installed to the louver body and respectively having a second air discharging portion; knobs installed under the air control plates respectively, and each knob including a control portion having one end directed downward in order for a user to easily operate the knob and the other end extending through the air control plate and a center of the air control housing to an interior of the louver body, air control cap respectively installed to the other end of the control portion; and air control conversion portions installed to the air control housings respectively, and each of which has a flowing hole formed at a center portion of the air control conversion portion for discharging the cooling air vertically and a guide portion formed around the flowing hole for discharging the cooling air horizontally.

The air control plate includes a coupling hole through which the one end of the control portion of each knob extends, and the first air discharging portion formed around the coupling hole. The first air discharging portion includes first air discharging holes which are radially and outwardly formed around the coupling hole, for passing the cooling air through the first air discharging holes in a vertically downward direction, and second air discharging holes which are radially and outwardly formed around the first air discharging holes, for passing the cooling air through the second air discharging holes in a horizontal direction.

The first air discharging holes of each air control plate are respectively formed at each one third position between the second air discharging holes.

Each of air control housings includes an insertion hole in which the one end of the control portion of each knob, and the second air discharging portion formed around the insertion hole. The second air discharging portion includes third air discharging holes formed radially and outwardly around the insertion hole, for passing the cooling air through the third air discharging holes in a vertically downward direction, fourth air discharging holes formed radially and outwardly around the third air discharging holes, for passing the cooling air through the fourth air discharging holes in a horizontal direction, and a mounting groove depressed in the air control housing so that the air control conversion portion is installed.

The third air discharging holes are formed at two third positions between the fourth air discharging holes.

The air control housing has mounting holes through which coupling screws extend in order to fix the air control housing to mounting clips of the louver body.

Each knob includes a housing portion installed to the control portion, which has a hemispheric shape with an upper portion of the housing portion opened and has a plurality of though-holes, latching protrusions which are latched in latching grooves of the air control plate to which the control portion is coupled, and a supporting plate formed below the latching protrusions, which is in surface contact with a lower surface of the air control housing so that the latching protrusions are inserted in the latching grooves of the air control plate.

The control portion has a first screw thread formed at the other end of the control portion.

The air control cap has a second screw thread formed on an inner peripheral surface of the air control cap in order to assemble the air control cap with the other end of the control portion.

The invention also includes motor vehicles particularly a bus and other commercial vehicles that comprise a louver structure of an air conditioner as described herein.

It is understood that the term “vehicle” or “vehicular” or other similar terms as used herein is inclusive of motor vehicles in general such as passenger automobiles, buses, trucks, various commercial vehicles, and the like. As discussed herein, in certain aspects, a preferred vehicle is a multiple-passenger motor vehicle, particularly a bus that may be designed for an occupancy of 4, 6, 8, 10, 12, 6, 20, 24, 30 or more passengers.

Other aspects of the invention are discussed below.

BRIEF DESCRIPTION OF THE DRAWINGS

The above and other objects, features, and advantages of the present invention will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which:

FIG. 1 is an exploded perspective view showing a louver structure of an air conditioner for a bus showing according to the present invention;

FIG. 2 is a sectional view showing the louver structure of the air conditioner for the bus according to the present invention, in which elements of the louver are assembled; and

FIGS. 3A to 3D are sectional views illustrating an operation of the louver structure of the air conditioner for the bus according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

As discussed above, a louver structure for a motor vehicle particularly a bus is provided which suitably comprises a louver body for discharging cooling air supplied through a duct and comprising one or more apertures; one or more air control plates positioned in coordination with one or more apertures of the louver body and comprising a first air discharging portion in order to discharge the cooling air, one or more air control housings positioned in coordination with the louver body and comprising a second air discharging portion; and one or more adjustment controls that can be accessed by a bus passenger and preferably may extend into the louver body. The louver body also may preferably include air control conversion portions installed to the air control housings. Suitably, one or more air control conversion portions comprises a flowing hole for discharging the cooling air vertically and a guide portion for discharging the cooling air horizontally. Preferably, the louver body may further comprise one or more air control caps installed in coordination with a control portion.

The louver body may be suitably configured by a variety of arrangements. For instance, in a preferred aspect, where the louver body is included in a multiple-passenger bus, the louver body is suitably installed in the duct arranged in the bus.

A preferred embodiment of the present invention will be described with reference to the accompanying drawings.

FIG. 1 is an exploded perspective view showing a preferred louver structure of an air conditioner for a bus according to the present invention, and FIG. 2 is a sectional view showing the louver structure of the air conditioner for the bus according to the present invention, in which elements of the louver are assembled.

The louver body 10 is suitably installed to a duct (not shown) of the air conditioner mounted in a vehicle, which suitably has thru-holes 12 respectively formed therein and mounting clips 14 mounted to an inner periphery of each thru-hole 12 in a close contact manner.

The louver body 10 having the thru-holes 12 suitably may have at least two mounting clips 14 mounted thereto. In a preferred configuration, the louver body 10 has four mounting clips mounted thereto.

Air control plates 20 having a first air discharging portion 22 are suitably installed to the thru-holes 12 respectively, so that cooling air supplied through the duct can be discharged through the first air discharging portion 22 of the air control plates 20.

Air control housings 30 are preferably fixedly installed to the louver body 10, which are respectively placed below each air control plate 20.

Adjustment controls such as knobs 40 are respectively installed below each air control plate 20, and may include control portions 42 each of which one end is directed downward in order for a user to easy operate the knob 40 and each of which the other end extends through center portions of the air control plate 20, the air control housing 30, and the louver body 10 into the duct.

Each air control plate 20 suitably has a coupling hole 21 formed at a center portion thereof so that one end of a control portion 42 extends through the coupling hole 21, and latching grooves 21 a depressed outwardly around the coupling hole 21.

The first air discharging portion 22 preferably is outwardly and radially formed around the coupling hole 21, which includes first air discharging holes 22 a through which the cooling air extends in a vertically downward direction, and second air discharging holes 22 a preferably which are radially and outwardly formed apart from the first air discharging holes 22 a, for passing the cooling air through the second air discharging holes 22 b.

The first air discharging holes 22 a of each control plate 20 preferably are formed at third one position between the second air discharging holes 22 b.

Each air control housing 30 suitably has an insertion hole 34 through which one end of the control portion 42 is inserted. A second discharging portion 32 is preferably outwardly and radially formed around the insertion hole 34, which includes third air discharging holes 32 a in order to pass the cooling air therethrough in a vertically downward direction, and fourth air discharging holes 32 b which are outwardly and radially formed apart from the third air discharging holes in order to pass the cooling air therethrough in a horizontal direction.

The third air discharging holes 32 a suitably are formed at third two positions between the fourth air discharging holes 32 b in the air control housing 30.

With the arrangement of the first and second air discharging holes 22 a and 22 b formed in the air control plate 20 and the third and fourth air discharging holes 32 a and 32 b formed in the air control housing 30 as described above, it can be possible to discharge the cooling air in the vertically downward direction, the horizontal direction, and the vertically downward and horizontal direction, because the control portion 42 of the knob 40 operates along with the air control plate 20 so as to supply the cooling air to a cabin of the bus from the duct.

The control portion 42 suitably has the other end assembled with the air control cap 50 which has a second screw thread 50 a on an inner periphery thereof. The second screw thread 50 a is suitably engaged with a first screw thread 42 a formed on the other end of the control portion 42.

The knob 40 (exemplary adjustment control) is connected to the control portion 42 and in a preferred configuration includes a hosing portion 44 having a hemispheric shape with an upper portion opened and having a plurality of through-holes 44 a.

The control portion 42 preferably has latching protrusions 46 to be engaged with the latching grooves 21 a respectively. Further, the control portion 42 preferably includes a supporting plate 48 which is formed below the latching protrusions 46 to be in surface contact with a lower surface of the air control housing 30 so that the latching protrusions 46 are stably inserted in the latching grooves 21.

Each air control conversion portion 60 is preferably assembled to the air control housing 30, and has a air flowing hole 62 formed at a center thereof for discharging the cooling air through the air flowing hole 62 in a vertical direction, and a guide portion 64 formed around and extends outwardly from the air flowing hole 62 for discharging the cooling air in a horizontal direction.

Referring to FIG. 2, the air control housing 30 suitably has a mounting groove 36 depressed therein and annularly formed apart from the fourth air discharging holes 32 b (see FIG. 1), so that the air control conversion portion 60 is mounted to the air control housing 30.

The air control housing 30 b preferably has mounting holes 38 (see FIG. 1) in order to fix the air control housing 30 b to the mounting clips 14 of the louver body 10 by means of screws.

Operation of a preferred a louver structure of an air conditioner for a multiple-passenger vehicle such as a bus in accordance with the invention is now described with reference to drawings.

Referring to FIGS. 1 and 2, the louver body 10 is suitably installed to the duct (not shown) of the air conditioner which is mounted in a motor vehicle particularly a multiple-passenger vehicle such as a bus (not shown).

The louver body 10 suitably has connecting holes formed at comers thereof so as to be fixedly installed to the duct by means of separate bolts or coupling screws.

The air control plate 20 is suitably installed on the air control housing 30. The control portion 42 of the adjustment control such as knob 40 extends through the coupling hole 21 of the air control plate 20 and the insertion hole 34 of the air control housing 30, and is operatively assembled with the louver body 10.

That is, the air control cap 50 is coupled to the other end of the control portion 42, below which the air control plate 20 is placed to operate by a rotating operation of the control portion 42.

The air control housing 30 is suitably installed below the air control plate 20 to be in close contact with a lower surface of the air control plate 20, which is fixed to the mounting clips 14 of the louver body 10 by extending separate coupling screws through the mounting holes 38 of the air control housing 20 respectively.

Referring again to FIG. 2, when a vehicle has many passengers getting thereon in the season, i.e. summer that temperature increases and driven, the temperature in the vehicle can rapidly increase.

Under such conditions, when a driver turns on the air conditioner (not shown) mounted in the vehicle to perform a cooling in the vehicle, the cooling air with controlled temperature and humidity is discharged through the thru-holes 12 (see FIG. 1) formed in the louver body 10 by way of the duct of the air conditioner installed in the vehicle.

Hereinafter, an operation of the louver structure of the air conditioner for the bus according to a preferred embodiment of the present invention will be described with relation to the case where the cooling air is discharged through the thru-holes 12 in the vertically downward direction.

Referring to FIG. 3A, when the passengers rotatably operate the control portion 42 of the knob 40 under the condition that the cabin in the vehicle is not cooled yet even though the cooling is performed in the vehicle, the air control plate 20 is rotated in a clockwise or counter clockwise direction by the latching protrusions 46 which are formed on the control portion 42 and engaged with the latching grooves 21 a of the air control plate 20.

As the air control plate 20 rotates in the clockwise or counterclockwise direction, the first air discharging holes 22 a of the first air discharging portion 22 formed in the air control plate 20 are aligned with the third air discharging holes 32 a of the second air discharging portion 32 formed in the air control housing 30 while the second air discharging holes 22 b is misaligned with the fourth air discharging holes 32 b, so as to discharge the cooling air through the first, second, third, and fourth holes 22 a, 22 b, 32 a, and 32 b in the vertically downward direction.

The first air discharging holes 22 a of the first air discharging portion 22 are aligned with the third air discharging holes 32 a of the air control housing 30, but the second air discharging holes 22 b are misaligned with the fourth air discharging holes 32 b. Thus, the cooling air supplied from the duct passes through the thru-holes 12 (see FIG. 1) of the louver body 10, which in turn passes through the first and third air discharging holes 22 a and 32 a.

The cooling air passing through the first and third air discharging holes 22 a and 32 a is introduced in the housing portion 44 (see FIG. 1) of the knob 40.

Since the housing portion 44 has the hemispheric shape in order for the cooling air to be diffusively discharged, the cooling air introduced into the housing portion 44 is discharged through the plurality of through-holes 44 a in the vertically downward direction as indicated by arrows.

In this state, when the control portion 42 is finely rotated in the clockwise or counterclockwise direction, the first air discharging holes 22 a come in misalignment with the third air discharging holes 32 a in proportional to the rotation of the control portion 42, thereby controlling the amount of the cooling air discharged into the housing portion 44.

Accordingly, if a large amount of the cooling air is discharged in the vertically downward direction and comes in direct contact with bodies of the passengers, the passengers can control the amount of the cooling air to the desired extent.

The supporting plate 48 formed on the control portion 42 operates in the state of being in contact with the lower surface of the air control housing 30 in order for the latching protrusions 46 to stably operate without a separation form the latching grooves 21 (see FIG. 1) of the air control plate 20, during the rotation of the control portion 42.

On the other hand, hereinafter, an operation of the louver structure of the air conditioner for the bus according to the present invention will be described in the case where the passengers are uncomfortable because of the directly discharged cooling air in the vertically downward direction.

Referring to FIG. 3B, when the passengers using the louver 10 in the state of FIG. 3A rotate the control portion 42, the latching protrusions 46 formed on the control portion 42 are engaged with the latching grooves 21 (see FIG. 1) of the air control plate 20 so as to rotate the air control plate 20 in the clockwise or counterclockwise direction.

As the air control plate 20 rotates in the clockwise or counterclockwise direction, the first and second air discharging holes 22 a and 22 b of the first air discharging portion 22 formed in the air control plate 20 are aligned with or misaligned with the third and fourth air discharging holes 32 a and 32 b of the second air discharging portion 32 formed in the air control housing 30 so that the cooling air is discharged in the horizontal direction.

That is, the first air discharging holes 22 a are misaligned with the third air discharging holes 32 a while the second air discharging holes 22 b is aligned with the fourth air discharging holes 32 b, so that the cooling air supplied from the duct passes through the thru-holes 12 (see FIG. 1) of the louver body 10, the second air discharging holes 22 b, and the fourth air discharging holes 32 b.

The cooling air passing through the second and fourth air discharging holes 22 b and 32 b is discharged toward the guide portion 64 of the air control conversion portion 60 installed to the air control housing 30, flows along the guide portion 64, and then is discharged in the horizontal direction as indicated by arrows of FIG. 3B.

In this state, when the control portion 42 is finely operated, the second air discharging holes 22 b come in the misalignment with the fourth air discharging holes 32 b to the extent that the control portion 42 is rotated, thereby controlling the amount of the cooling air which is discharged to the guide portion 64.

Accordingly, the cooling air is discharged in the horizontal direction, so that direct flow onto the bodies of the passengers is reduced.

In a preferred embodiment of the present invention, an operation of the louver structure of the air conditioner for the bus when the cooling air is discharged through the thru-holes 12 in the vertically downward and horizontal directions by the passengers getting on the vehicle will be described.

Referring to FIG. 3C, in order to discharge the cooling air in the horizontal and vertically downward directions, the control portion 42 is rotated. In the state that the first air discharging holes 22 a are aligned with the third air discharging holes 32 a, when the control portion 42 is finely controlled so that the second air discharging holes 22 b are aligned with the fourth air discharging holes 32 b, the first air discharging holes 22 a are partially aligned with the third air discharging holes 32 a.

When the first air discharging holes 22 a are partially aligned with the third air discharging holes 32 a, the second air discharging holes 22 b also are partially aligned with the fourth air discharging holes 32 b, thereby making it possible to discharge the cooling air in the vertically downward and horizontal directions.

In the preferred embodiment of the present invention, an operation of the louver of the air conditioner for the bus when all the first and second air discharging portions are closed because the passengers getting on the vehicle do not want the discharge of the cooling air anymore will be described with reference to drawings.

Referring to FIG. 3D, in the case where the passengers do not want the discharge of the cooling air anymore, when the control portion 42 is rotated in the clockwise or counterclockwise directions, the first and second air discharging holes 22 a and 22 b (see FIG. 1) are misaligned with the third and fourth air discharging holes 32 a and 32 b, respectively.

The above-mentioned operation makes the cooling air to be hardly discharged through the thru-holes 12 (see FIG. 1) of the louver body 10 in any direction.

In FIGS. 3C and 3D, the housing portion 44 provided to the knob 40 is not shown with convenience for description.

As described above, the louver structure of the air conditioner for the bus according to the present invention has an advantage in that the passengers can control the desired amount of the cooling air to be discharged from the duct of the air conditioner in the desired direction.

Furthermore, when the passengers do not want the cooling air to be in direct contact with their bodies, it is possible to convert the direction of discharging the cooling air in an alternate direction, particularly the horizontal direction. Also, there is an advantage of improving a cooling effect in the cabin of the vehicle.

While a preferred embodiment of the present invention has been described for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims. 

1. A louver structure of an air conditioner for a bus, comprising: a louver body for discharging cooling air supplied through a duct, the louver body being installed in the duct arranged in the bus and having thru-holes formed in the louver body; air control plates respectively installed in each thru-hole of the louver body and having a first air discharging portion in order to discharge the cooling air; air control housings fixedly installed to the louver body and respectively having a second air discharging portion; knobs installed under the air control plates respectively, and each knob including a control portion having one end directed downward in order for a user to easy operate the knob and the other end extending through the air control plate and a center of the air control housing to an interior of the louver body; air control cap respectively installed to the other end of the control portion; and air control conversion portions installed to the air control housings respectively, and each of which has a flowing hole formed at a center portion of the air control conversion portion for discharging the cooling air vertically and a guide portion formed around the flowing hole for discharging the cooling air horizontally.
 2. The louver structure of an air conditioner for a bus of claim 1, wherein the louver body has respective mounting clips to be in close contact with an inner periphery of each thru-hole.
 3. The louver structure of an air conditioner for a bus of claim 1, wherein the air control plates includes a coupling hole through which the one end of the control portion of each knob extends, and the first air discharging portion formed around the coupling hole including first air discharging holes which are radially and outwardly formed around the coupling hole, for passing the cooling air through the first air discharging holes in a vertically downward direction, and second air discharging holes which are radially and outwardly formed around the first air discharging holes, for passing the cooling air through the second air discharging holes in a horizontal direction.
 4. The louver structure of an air conditioner for a bus of claim 1, wherein the first air discharging holes of each air control plate are respectively formed at each one third position between the second air discharging holes.
 5. The louver structure of an air conditioner for a bus of claim 3, wherein depression grooves are outwardly formed at the coupling hole.
 6. The louver structure of an air conditioner for a bus of claim 1, wherein each air control housing includes an insertion hole in which the one end of the control portion of each knob, and the second air discharging portion formed around the insertion hole including third air discharging holes formed radially and outwardly around the insertion hole, for passing the cooling air through the third air discharging holes in a vertically downward direction, fourth air discharging holes formed radially and outwardly around the third air discharging holes, for passing the cooling air through the fourth air discharging holes in a horizontal direction, and a mounting groove depressed in the air control housing so that the air control conversion portion is installed.
 7. The louver structure of an air conditioner for a bus of claim 6, wherein the third air discharging holes are formed at two third positions between the fourth air discharging holes.
 8. The louver structure of an air conditioner for a bus of claim 6, wherein the air control housing has mounting holes through which coupling screws extend in order to fix the air control housing to mounting clips of the louver body.
 9. The louver structure of an air conditioner for a bus of claim 1, wherein each knob including a housing portion installed to the control portion, and which has a hemispheric shape with an upper portion of the housing portion opened and has a plurality of though-holes, latching protrusions which are latched in latching grooves of the air control plate to which the control portion is coupled, and a supporting plate formed below the latching protrusions, which is in surface contact with a lower surface of the air control housing so that the latching protrusions are inserted in the latching grooves of the air control plate.
 10. The louver structure of an air conditioner for a bus as claimed in claim 1, wherein the control portion has a first screw thread formed at the other end of the control portion.
 11. The louver structure of an air conditioner for a bus as claimed in claim 1, wherein the air control cap has a second screw thread formed on an inner peripheral surface of the air control cap in order to assemble the air control cap with the other end of the control portion.
 12. A louver structure of an air conditioner for a vehicle, comprising: a louver body for discharging cooling air supplied through a duct and comprising one or more apertures; one or more air control plates positioned in coordination with one or more apertures of the louver body and comprising a first air discharging portion in order to discharge the cooling air; one or more air control housings positioned in coordination with the louver body and comprising a second air discharging portion; and one or more adjustment controls that can be accessed by a vehicle passenger.
 13. The louver structure of claim 12 further comprising an air control cap.
 14. The louver structure of claim 12 further comprising air control conversion portions installed to the air control housings.
 15. The louver structure of claim 14 wherein one or more air control conversion portions comprises a flowing hole for discharging the cooling air vertically and a guide portion for discharging the cooling air horizontally.
 16. The louver structure of claim 12 wherein the louver body is installed in the duct arranged in the vehicle.
 17. A motor vehicle comprising a louver structure of claim
 1. 18. A motor vehicle comprising a louver structure of claim
 12. 